航空航天用激光增材制造金属构件热处理研究进展-中国材料进展

文章信息/Info

Title:: Research Progress on Heat Treatment of Metal Components Manufactured by Laser Additive Manufacturing for Aerospace Applications

Author(s):: Xue Sa; Zhu Zhen; Lan Jian; Lai Yunjin; Zuo Zhenbo; Li Shaoqiang; Xi’an Sino-Euro Materials Technologies Co., Ltd., Xi’an 710018, China

Keywords:: selective laser melting; heat treatment; Al-Si-Mg; Ti6Al4V; Inconel 718

摘要:: 航空航天用金属构件需同时满足高性能、低成本、高可靠性等要求，铝、钛、镍三类合金由于具有优异的综合性能成为航空航天领域重点发展材料，也是激光增材制造中重要的应用材料。选区激光熔化技术成形精度高、生产效率高，可获得近全致密的复杂结构金属构件，是目前增材制造的研究热点。热处理是增材制造金属构件后处理环节中的主要步骤，在调整组织及最终性能方面起着重要作用。重点介绍了近年来面向航空航天用选区激光熔化增材制造Al-Si-Mg、Ti6Al4V和Inconel 718合金构件热处理工艺的研究进展，并对其未来发展方向进行了展望。

Abstract:: Metal components for aerospace applications need to meet the requirements of high performance, low cost and high reliability simultaneously. Aluminum, titanium, and nickel alloys have become key materials in the aerospace field due to their excellent comprehensive properties, and they are also important application materials in laser additive manufacturing. The selective laser melting (SLM) technology offers high forming accuracy, high production efficiency, and the ability to produce nearly fully dense complex metal structures, making it a hotspot in current additive manufacturing research. The heat treatment is a major step in the post-processing for additive manufactured metal components, playing a crucial role in adjusting the microstructure and final performance. This paper focuses on the recent research progress in the heat treatment processes of Al-Si-Mg, Ti6Al4V and Inconel 718 alloy components manufactured by SLM for aerospace applications, and it provides an outlook on future development directions.